I think you have a faulty phone. bring it into verizion and show them whats wrong with it, ( as you pointed out in the post) and ask if you can get a replacement phone for it since it is still under the 1 year replacement warrenty.

Hope it works.

I have also had the same problem. I have spoken with VZW at least 3 times on the phone and made 3 trips to the store and I have only had my Thunderbolt for 2 days. It's disgusting and I have sent off an e-mail to VZW telling them how awful their customer service has been. HTC hasn't been all that helpful either, although they at least acknowledge that it is an issue - but they still push you back to VZW for a fix.. VZW says that it's not a "known issue".

Anyway - I finally talked with someone at VZW who had at least a small understanding of my frustration. She went through some simple trouble shooting steps with me and for the past few hours my phone hasn't been shutting off. Now this could just be coincidence but hey.. I'm just grasping at straws here.

Power off the phone, remove the battery, and take out the SIM card. DO NOT TOUCH THE GOLD PLATES!!! Leave the SIM card and battery out for a good 30 seconds and then put your device back together.

When I turned the phone back on, the intro noises with the clouds, thunder, and lightning actually played - it has not done this since the upgrade went through so that made me feel a little bit better that maybe, just maybe, this will work.

I will post back and let you know if this solved the issue. FYI - HTC is close-lipped on when the update will come out. The rep I spoke with said not to do any updates (if your phone prompts you to do so) without checking the HTC website first.

Just seems to many glitches that needs attention asap... I noticed few other things that happen.

I was out of town, and decide to use the (Google Nav) which works very good... until HTC TB decide to reboot it's self few times while I was using the Google Nav... So, i just decide to disable the Background sync & auto sync on the phone... and it never reset its self again, after I made those changes...

Also, i notice couple times during the reboot the 'Intro' thunder noises, doesn't play the thunder sound sometimes.... And when connecting to my wi-fi (Hot Spot) app to use with my laptop sometimes it disconnects the wi-fi....

I

Well that did not fix the problem. My phone just rebooted twice in a matter of minutes. I will be making my 4th trip to VZW tomorrow, or Tuesday if they are closed, to get a brand new phone and I will not be doing the most recent software upgrade. If you have had your phone less than 14 days you can get it replaced with a brand new phone under VZW's dead on arrival clause. Good luck everyone. This is almost enough to make me an iPhone user.

Its not that application. I dont have that app installed on my phone nor have i ever and its  rebooting since the reset as well.

the update wasnt from Verizon. it was from HTC and there is nothing that Verizon can do. i know this b/c I know several people that work for Verizon Tech Support. Any updates that roll out to phones are from the Manufacturers not the Cell phone providers.

I thought HTC made good phones, guess I was wrong.  This is my first and last HTC product.  This is ridiculous.  This rebooting is the topper.  It's bad enough the battery is so underpowered and the the mic for video recording is useless.   And why they didn't come out with a dock for this thing is dumbfounding...

After a couple of weeks of wondering why my Facebook notifications were not popping up I decided to look to see if my phone needed updating. Sure enough it did. I did it yesterday & my phone keeps rebooting also. I had been running my phone in forced 3G from some problems with the network a few weeks back.  Since we dont have 4GLTE in my area I left it that way. Today I switched it back. Still rebooting. I think we just have to be patient & wait for a fix from HTC

Quick summary of my situation:  Got a Thunderbolt shortly after they came out.  Solid device, no troubles.  Update notification shows up on the phone, I let it do it's thing.  Phone starts rebooting a lot, at least once a day that I catch, sometimes multiple times in an hour on bad days.  Go to Verizon store, get told he doesn't know about any update to the Thunderbolt and doesn't know anything about this issue.  Come home, find this thread on HTC forum.  Call HTC and do a factory data reset at their suggestion.  Problem disappears for a few days, then returns to the same rebooting routine.  Go back to Verizon store and express displeasure.

So, the new phone gets here and I get it turned on and minimally set up before I call it a night.  Plug it in and leave it on my nightstand and go to sleep.  The next morning I wake up wondering why my alarm didn't go off, and find that the phone isn't turned on.  That's odd, I think, I'm sure it was on when I went to sleep.  Oh well.  Begin the process of putting all my stuff back on the phone, getting it configured, etc.  No problem the rest of that day. Great, I think, finally fixed!  Then this afternoon, had the headphones on listening to music on the phone and <silence>.  Pull it out and look at it... sure enough, it's gone again.  But it doesn't reboot.  So apparently they fixed the rebooting problem in this phone, and now it just randomly shuts down and doesn't even have the common courtesy to restart itself any more.

So, off to my Verizon store I go again.  The lady there does the standard battery of tests: takes out my battery and restarts the phone, yes it can make calls, yet it can receive calls, yes it can run an app, etc.  Gives me a phone number for Verizon tech support and tells me that I'll have to continue with them, that's all she can do in the store.  This is pretty funny since just less than a week ago someone in the store did more than that (ordered me a replacement phone), but whatever. 

So, I go home and call the number she gave me and start describing this whole mess to yet another guy.  He asks me to go to the Settings menu on the phone, and then realizes that the phone with the problem is the one I'm calling him from (because it's the only phone I have, I don't have a land line).  Since rebooting the phone will be involved, he tells me that he will call me back this evening when I will have another phone available to use (my wife will be home with her phone).  At about 6:30, I stop kidding myself and call back in to the number and start explaining everything again to yet another guy.  We never did do anything that involved rebooting the phone (or even the settings menu for that matter), and he tells me that he recommends I either do a factory data reset or have them ship me another phone.  I'm not very keen on doing either of these things since I've already tried them both and neither helped.  

From there we start talking about other possibilities.  Basically, I can:

1) Let them send me another replacement phone (stall while they hope to get a patch that actually fixes the problem)
2) Use the Verizon Trade-in program to get $240 back for the Thunderbolt and upgrade my line and get a different phone, which of course resets my contract to a full, new, 2 year term (I have 10 months on my current contract because I paid extra to only have a 1 year contract when I got the T'bolt).
3) Pay the $330 early termination fee to cancel my Verizon account.  No refund will be given for the T'bolt.

I repeatedly asked to be allowed to simply trade this phone for another Android phone of similar features to fix this problem, but got nowhere.  I asked if there was someone else with whom I could express my displeasure over this situation, but didn't get anywhere with that either.  (He was a master of deflecting my questions and never really giving me any kind of a straight out "no" answer to anything).

Option 2 would be the obvious choice, it wouldn't really cost me any money, only extend my contract by an additional 14 months.  But, being fortunate enough that I can afford to lose $330 to have the satisfaction of being rid of a company that doesn't value my business, I think I'll do that instead.  I'm sure I'll end up with another company that will value me just as little as these guys do since we only have about three companies to choose from anyway.  Hmmm, just Googled up an article about T-Mobile that says they will give $225 (http://www.mytradeins.com/) for a T'bolt if I switch to them.  Then I'd be out only $100.  That sounds worth it to me.

I have the Thunderbolt and after the last update, mine has been rebooting too. I also get kicked out of applications unexpectedly only to be greeted by a fast boot. I hope Gingerbread shows up soon because this past update only served to screw up my phone even more. By the way, this is my second phone after replacing the first one that was also rebooting unexpectedly.

I tried that because mine restarts or restarts but doesn't turn back on. It took 5 attempts yesterdaay to run the Stability Test app. A couple of the crash reports were emailed to me but I don't know what they mean.

I don't remember what the final message was when I ran it last night but there is something wrong. Mine just restarts. The only thing wrong with the Stability Test app is that if I have a pop up text or alarm go off, it stops and you have to start over

Is there a program to download that is like disk cleanup for a PC but for Droid's??? If so, would that help with the problem????